Method of manufacturing fiber containers



March 3,1942. H. w. MORGAN METHOD OF MANUFACTURING FIBER CONTAINERS 1938 5- Sheets-Sheet l Original Filed Dec.

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l ATTORNEY .March 3,w 1 942.

H. W. MORGAN METHOD OF MANUFACTURING FIBER CONTAINERS Original Filed Dec# 29, 1938' 3 Sheets-Sheet 2 ATTORNEY March 3, 194,2.4 H 'W MORGAN 2,275,157

METHOD-OF MANUFACTURING FIBER CONTAINERS l Original Filed Deo. 29, 1938 3 Sheets-Sheet 5 ATTO R N EY Patented Maf. 3, 1942 METHOD F MANUFACTURING FIBER CONTAINERS Harry W. Morgan, Phlllipsburg, N. J., assigner to The Canister Company, Phillipsburg, N. J., a corporation of New Jersey Continuation oi' application Serial No. 248,151, December 29, 1938. This application December 23, 1939, Serial N0.J 310,808

claims," (ci. :as-9o This application is a continuation of my prior application, Serial No. 248,151, filed December `29, 1938 relating to Paper containers and assigned to The Canister Company.

:fg-The present invention relates broadly to a method of manufacturing fibre tubing nonpermeable to moisture, grease or oil, from which tubing may be fabricated containers or cans having metallic end closures. More particularly, the invention contemplates the formation of libre tubing of the straight wound laminated type, provided with an inner-liner having the properties of being impervious to hygroscopic or deliquescent materials, also non-permeable to oils and greases; the inner-liner being hermetically joined to the body Wall stock.

An object of the invention is the provision of a method of manufacturing a fibre tubing of the above character from a composite body stock produced continuously by a series of interrelated steps that are carried out successively in such a manner that nothing but the end product is contemplated, i. e. completely formed tubing, whereby the formation of any intermediate product, that may be further processed separately, or may require partial reprocessing to obtain the end product, is avoided.

Another object is the provision of a method of making laminated inner-liner fibrous tubes consisting of continuously feeding a fibrous body sheet and a .lining material such as an oil proof parchment in opposite directions, folding the parchment over the leading edge of the body sheet, and feeding the folded edge in the direction of feed of the body sheet.

Another object is the provision of a method by which the leading `edge of the body material functions as a tucker element for the lining material in presenting the two materials t`o a tube rolling mechanism.

Another object of the invention is the provision of a method of manufacturing container bodies comprising continuously feeding a roll of body stock in one direction, continuously feeding a roll of parchment in the opposite direction, providing lines of weakness in the parchment which permits severance thereof along the lines of weakness without interrupting theY feedingof the parchment, and compensating for the difference in the feed of the two materials so that they are rought to a point of joinder in such a manner as to permit their overlapping and making a fold of the parchment about the leading edge of the body stock.

1 Another object is the provision of a method comprising utilizing a body stock of indefinite length and -sectionallyl applying thereto a lining material, in dry condition, i. e. unmoistened or free from adhesive, of the same Width as the body stock and of predetermined length.

Another object of the invention is the provision of a method of fabricating multi-ply tubular container bodies having a moisture and oil proof inner-liner, which method contemplates continuously coating one side of a body stock of indennite length with a suitable adhesive and intermittently coating the other side of the body stock with an adhesive, the intermittently coated sections being coextensive with the area of oil proof inner-liners severally applied to said sections.

A further object is the provision of a method of manufacturing fibre tubing which comprises uniting a body stock with a sheet of parchment in such a manner that the parchment is cut into sections in lengths appreciably longer than the inside circumference of the tubing, folding one end of the parchment over the leading edge of the body stock, rolling the two together and severing the body stock into lengths suilicient to form one or more plies about the inner-liner during the rolling operation.

A special object of the invention is the provision of a method whereby the number of plies of body stock and/or the cross-section of the formed container body may be varied within wide limits with a minimum of machine adjustments or duplication of machine parts.

Other objects of the invention will manifest themselves as the description proceeds, as for example the overcoming of many inherent diniculties now encountered in the fabrication of multi-ply container bodies having an inner-liner adhesively joined thereto, and the production of complete containers from said bodies.

Heretofore various methods have been proposed for continuously manufacturing bre containers, and apparatus for carrying out the' methods, but all such methods of whichI am aware have been impractical or met with ind rent success because of some inherent deve step or steps forming part ofL a given method. One such method I have in mind contemplated feeding a sheet of body material and a sheet of inner-liner in the same direction, applying an adhesive to one surface of the innerliner and then joining the body material -With the inner-liner. A serious diflculty with any method involving such an operating step is that it is impossible to prevent a moistened inner-liner o f thin material such as glassine from wrinkling or blistering, and in attempting` to overcome or lessen this tendency, means must be provided for drying the composite body stock at that stage,

which constitutes an' interruption in the con' step, is that the sheet of inner-liner is secured to one of the marginal edges of the sheet of body material, and after the drying operation the composite strip is passed to a cutting station, which by severing the strip cross-wise produces a can body blank, as an intermediate product, having the width of the sheet of body material, which restricts the number of` laminations of which the body container may be composed when formed upon' a rolling mechanism. Obviously, this necessitates a large assortment of rolls in order to adapt the machine to any substantial change in container size or variation in the number of plies employed. Also, fundamentally the formation of an intermediate product has the tendency of prolonging or complicating the main process, and is therefore objectionable.

My method is free of yall such objectionable steps as will be apparent as the description proceeds.

The method of manufacturing nbre containers in accordance with the present invention, comprises continuously feeding a body sheet of brous material such as chip board, or the like, in one direction, and continuously feeding a sheet of inner-liner, which may be any parchmentized oil-proof or oil resistant material, such as glassine, in the opposite direction,I the innerliner preferably being fed over the body material. The chip may have its upper surface covered Vthroughout its entire length with an adhesive, preferably a vegetable adhesive, andthe opposite or under surface intermittently covered with a suitable oil insoluble adhesive for a distance slightly greater than the. length of the inner-liner. The body sheet and the innerlinersheet are provided with cross-wise straight out edges and the opposing edges are moved toward each other so that the leading edge of the inner-liner sheet is positioned above-and slightly overlaps the leading edge of the body sheet, in which position they are pressed together by moving one edge against the other. By this operation an overlap of substantial width is provided and a fold is formed by turning the innerliner downwardly and 'backwardly From this stage the leading edge of the chip functions as a tucker element for the inner-liner in presenting the fold to a gripping member, forming part of the'tube rolling mechanism.

The inner-liner, prior to effecting the above fold, `is scored transversely at predetermined lengths, corresponding substantially to the internal diameter of a given size container body,

and which is approximately the ydistance the under surface of the chip is sectionally coated by the intermittent application of adhesive to said under surface, as mentioned above. The inner-liner is the same' width as the chip stock and the marginal edges of the two materials are kept in alignment. When a measured length of the inner-liner has been joined to the chip stock,

it is vsevered along the line of weakness orscorof an adhesive applied thereto.

ing, and the-combined sheets of chip and innerliner are rolled together to enclose the innerliner and to form a tube. When the desired numberv of plies of chip have been wound upon the mandrel of the rolling mechanism the chip is severed independently of the inner-liner, and a label, preferably made from waterproof stock,

vis applied to theexterior of the tube thus formed.

At the time the overlapping edges of the inner-liner and the chip stock are joined, the outer edge of `the inner-liner has a side seam The length of the inner-liner being slightly greater than the inside circumference of the tubing provides an overlap for the edges of the liner so that the adhesive for the side seam joins the inner edge of the liner with the outer or adjacent edge thereof, and the adhesive on the outer wall of the inner or adjacent ply of chip, as well as the,

adhesive on the inner wall of the succeeding or second ply, produces a non-permeable yseal at the fold of the inner-liner. Referring to the accompanying drawings: Fig. l is a schematic side elevation of the essential machine elements employed in carrying out the various process steps in fabricating a fibrousv container body in accordance with the present invention;

Fig. 2 is an enlarged transverse sectional view taken through the fibrous body material and the inner-liner material which are united into a composite body, the inner-liner being positioned above -and overlapping the body materials;

Fig. 3 is an enlarged view.,`partly insection and partly in elevation, of the over-lapped edges of the body material and the inner-liner gripped between a glue pot of a clamping device and the movable edge of a table;

Fig. 4 is a schematic sectional view of the folded vover edge of the inner-liner being presented to the jaws of a gripper element forming part of the tube winding mechanism;

Fig. 5 is a similar view showing the fold engaged by the gripper, thev table retracted, and

the glue finger of the clamping device released, preparatory to the severance ofthe body stock;

Fig. 6 is an enlarged, fragmentary sectional view, of gripping mechanism positioned las shown in 5- I Fig. 7 is an elevation witha part of the body of the container broken away and with the bottom .closure separated from the 'body of the container as delivered by the manufacturer;

Fig. 8 is' a bottom view of the container; and Fig. 9 is an enlarged fragmentary sectional view taken on the line 9 9 in Fig. 7 looking up. Referring to Fig. 1, it will be seen that the invention in its broad aspects contemplates the continuous feeding of a fibrous body material in sheet form in'one direction, and the continuous feeding of an oil and grease-proof material, also -mentized oil and grease-proof paper, such as glassine, designated generally by the reference character B.' A parent roll l of chip stock may be mounted on a suitable reel at the right of the machine and the sheet A is fed over the rolls 2 and 3 and under rolls 4 and 5, which engage the sheet A with a glue roll 6 which turns on a glue roll 'I partly submerged and rotatable in an adhesive 8 contained in a main glue pot 9 at which station the upper or outer surface of the chip A is coated throughout its entire length with the adhesive 8. Ihis system of rolls cooperatively functions as feed rolls in carrying the sheet A of chip to rolls II and l2 and around a` dance roll I3 pivotally mounted in any suitable manner. A secondary glue pot I4 contains an adhesive I gages a roll I 1 mounted thereover and positioned slightly below the normal path of travel of the chip A. Rolls I8 and I9 are symmetrically positioned over the roll Il on arms ZI and Z2 which may be raised and lowered intermittently by any suitable cam arrangement to engage the top surface of thechip A thereby effecting the application of adhesive intermittently to the lower or inner side of the chip A. The chip A is next led to a feed table 23, pivotally mounted upon each side along one edge, and which, in accordance with the usual practice, may be provided with a gravity bar or lever (not shown) which holds the chip against back slipping. The table 23 should be designed to move to and fro in a horizontal plane, and swing upwardly about its pivotal points. Means for accomplishing this will readily suggest themselves to those skilled in the art, and the-purpose of such a construction will be apparent hereinafter. The normal position of the table 23 is inclined downwardly and forwardly. The free end of the table 23. may be raised through an arcuate path motion to a horizontal plane as shown in position the table 23 moves slightly forward so as to advance the leading edge of the chip A to an operative position (see Fig. 4) with respect to the tube rolling mechanism, as will be here'- inafter more fully explained.

During the advance of the sheet A of chipboard as set forth above, the sheetv B of the inner-liner has been feeding from the opposite end of the machine to meet and be consolidated with the sheet B. A parent roll 24 of innerliner material is rotatably mounted upon a supporting stand. The sheet B is threaded under a roll 25 and over a roll 29 where slitter knives 21 may be mounted to slit the sheet B longitudinally so as to form strips of any desired width which would be determined by the height of a given container body undergoing fabrication. The sheet B is next threaded between feed rolls 29 and 29 and over roll 30 above which is mounted dotted line, Fig. 1. In that 5 into which dips a roll i6 which ena rotary perforator comprising a roller 3| having a cutter bar 32 arranged transversely and having a serrated edge which projects sufllciently so as to perforate or make a series of transverse cuts and thus form a line of weakness, but leaving enough of the sheet B uncut to maintain lengthwise-continuity The length of the individual inner-'liners is varied by changing the ratio between sprocket wheels located at 30 and 33.

A vacuum belt 34 is operated by feed ro'lls 35 and 33 in vertical tandem, with the roll 36 contacting the upper surface of lthe belt 34 in such a manner as to insure constant or uniform tension on the sheet B as it passes under the cutter bar 32. AAs vacuum belts are` of more or less standard construction and commonly employed in the feeding of fibrous or woven materials, the

construction and operation of the belt 34 will advances. by operation of feed roll united to each posite the mandrel vbe appreciated by those skilled in the art. The

belt 34 carries the edge of the web B to its extreme right end where the latter passes under a tear roll 20. At this stage the table 23 carrying the advancing chip board has swung downwardly at its left end, so that the leading edges of the sheets A and B are extending towards each other in opposite directions, with the edge of the innerliner above and slightly overlapping the edge of the chipboard, the latter at this step in the process having glue on both sides thereof. That.

sheets A and B are about to be other to form a composite body, the sequence of operations are so timed that a section ofthe sheet A having its lower surface coated with adhesive has arrived opposite the leading edge of the sheet B, and it will be recalled the upper surface of the sheet A is continuously Icoated with adhesive, so that both sui'- faces of sheet A are now covered with glue.

As the left end of the table 23 reaches its lowermost position, it effects the operation of a clamp device. designated generally by the numeral 31 and pivotally mounted at the sidesl of the table 23 and normally held open by a suitable tension spring. The clamp 31 may comprise a crank having a short lever arm 46v and a glue finger 38 terminating in a glue pot 39 having perforations 40 transversely arranged in the bottom thereof (see Fig. 3) which allow the glue to escape slowly therethrough forming a film. The closure of the clamp 31 may be effected by any suitable means operated by the table 23 in swinging down to its lowermost position, as for example by the arm 4G engaging a pin 4l adjustable vertically and operatively positioned with respect to the arm 48, whereby the glue pot 39 is forced down on the overlapping edges of the sheets A and B. By this operation the joinder of the leading edges of the chip andthe inner-liner is accomplished, and simultaneously therewith a side seam of is to say as the adhesive, deposited from the film on the under surface of the glue pot 39, is applied to the upper surface of the leading edge of the inner-liner.

At this step in the process the table 23 moves forward and upward simultaneously, and the sheet B, being thus brought into engagement with the tear roll 20, is thereby severed along the adjacent transverse line of perforation or scoring previously formed by the cutter bar 32 of the rotary perforator. It will be appreciated that the upward movement of the table 23, in an arcuate path so as to position the edge thereof op- 42, is faster than the rate of feeding the inner-liner B over the vacuum belt 34. It is because of this difference in the relative rate of movement of the table with respect to the rate of feeding the inner-liner, that effects the severing of the inner-liner along the line of perforation, and it will thus be seen that practically the instant the table 23 starts its upward movement, a section of inner-liner is torn from the continuous web thereof. The vacuum created by the belt 34 retains the leading edge portion of the inner-liner in position on saidbelt, and the leading edge of the inner-liner sheet B 36, to the end of the vacuum belt so that when the edge of the table 23 is again in a receptive position for the overlapping of the edges of the sheets A and B, the edge of the sheet B will have advanced to `a under spring tension, thus releasing the united edges of the sheets A and B and permitting the forward feeding thereof.

The leading edge of the chip is now 4free to function as a tucker element for the overlapped and/or folded edge of manner, and after having made the required i number of turns to wind the desired number of plies it stops rotating. Meanwhile the table 23, having retracted in a horizontal plane, comes to rest in an operative position with respect to a transverse cutting knife 45, which is adapted to move downwardly and shear the sheet A transversely, and thereupon a stripperA (not shown) may be caused to move forward along the mandrel 43.

The next station may be the labeling position, at which the unwound iiap, formed by severing the sheet A at the time the mandrel 43 was stopped and the knife 45 moved to cutting position, is rolled onto the container body and may constitute a part of the labeling operation. Upon the completion of the container body it may be ejected from the mandrel 43 by any suitable ejecting means.

y Referring to Fig. 9, which is a greatly enlarged sectional view, it will be seen that the container bodyfcomprises five plies, indicated by the reference character 50, of the continuous sheet B of the chipboard. The chip terminates in an inner edge 5| and an outer edge 52, which edges are cut along straight lines transversely and which would ordinarily expose, unless otherwise pro- 1 tected as herein contemplated, the interior edge of the chipboard so that liquids, oils and greasesmight by absorption or capillary action, slowly permeate the chip stock from edge to edge.

The coating of glue applied to the entire outer surface of the sheet B of chip forms layers 49 causing the plies 50 to adhere firmly to each other throughout the entire container body. 'Ihe folded over edge 53 of the inner-liner forms a seal over the cut edge 5|-, and the overlap 54 of the fold is completely encased in the adhesive applied to the outer Wall of 'the inner ply 50 and the inner wall `of the succeeding or second ply.

That is to say, at the time the fold was made, a`

seam of glue was applied to the upper edge oi the inner-liner, and this source of glue, together with the vglue whichis applied intermittently to thel under surface of the sheet B, andvfor a distance slightly greater than the length of an individual inner-liner, constitutel the sources of adhesll es..

for encasing the overlap 54. lIt should'al I appreciated that the squeezing of the overlapA on opposite sides of the fold by the clampingl device 3l forced adhesive 5v5. between the cut end 5| and the fold 53;.A The layer ofadhesive .55 formed over the cut edge 5|` provides a secondary seal under. the fold, and this, together with the complete glue encasemvent ofthe folded or overlapped edge of theinner-liner, render the edge 5| nonpermeable to liquids, oils, greases and the like.

It will be noted that Fig. 9 does not show a label applied to the container. body, which ymay sorption may occur if the edge 52 were exposedto the atmosphere.

The completely fabricated container body which, for convenience, may be designated by the numeral 60, is sealed at the top by a metal closure 6| having at its periphery a liange which is bent over and impressedin the outer wall of the container body 60 to form a sidewardly projecting bead. 62. At the time the metal closure 6| is sealed to the container body 60, a suitable dope is applied to the raw edge of the body 6U which forms a perfect hermetical seal between the end of the container body 6.0 and the closure 6|. Another metal closure 63 has a ange 64 projecting o ut sidewise at the periphery. The closure tioned precaution or step of applying "dope is followed in order to hermetically seal the container atboth of its ends.

From the foregoing it will be seen that fibrous container bodies produced by practicing my method are characterized by having an innerliner non-permeable to oil and grease, with the ends thereof overlapping and completely glue encased. An important feature or step in the method, is applying the liner in a dry or unmoistened condition, thus avoiding the likelihood of forming wrinkles or blisters, and at the same time insuring good glue contact throughout the entire engaging surfaces of the liner material and body stock. The method of fabricating the container bodies inherently avoids the production of any intermediate product which requires separate or partial reprocessing. This is conducive to making the process more truly a continuous one in the sense that the end product, i.,e. a finished containerbody, is the ultimate and only article produced.

By the very nature ofthe process, the number of plies forming the surrounding support for the inner-liner may be increased or decreased at will because the body stock is fed as a continuous sheet and itis merely a matter of making the necessary mechanical adjustments on the machine to vary the number of plies. It is also possible to vary the width of the container body within a considerable range because the tube winding mandrel may be made, of substantial width and by suitable adjustmentof the slitter knives practically any length can body may be wound coming within the maximum width of the winding mandrel. It will also be appreciated that the cross-section of the fibrous tube may be round, oval, elliptical, square, rectangular, etc. the same mer'ely'depending upon the shape of the mandrel. These features make the method practically universal in its adaption to the fabrication of different sizes and shapes of multi-ply container bodies. i Y 1 It may be' noted that the charactfvadhesive sed to join the lseveral yplies of chip together, as

well as the kind of adhesive employed in uniting the several sheets of inner-liner to the chip and encasing the ends thereof, will be determined by the type of container bodies undergoing fabrication. Ordinarily any suitable oil insoluble glue such as hide or 'fish glue may be used to bring the inner-liner and body stock into sealed relationship impervious to oil and grease. On the other hand for coating the outer surface of the chip board any suitable glue having moisture resistant characteristics may be used in order to make the container more moisture proof than it might otherwise be if the same type of adhesive was used throughout the container body. It is obvious that the character of the body sheet and inner-liner will have a bearing upon the selection of adhesive used, as well as the use to which the finished container is to be applied.

With respect to the kind of material used for the inner-liner, it may be observed that for an oil and grease-'proof container, the liner may be a parchmentized paper, such as known and sold as grease proof paper, an example being glassine. Other satisfactory liner materials are vegetable parchment,- Celiophane, cellulose acetate in sheet form, and many thermo-plastics. Therefore in using the term parchmentized or oil-proof paper, or variations of this term, in

certain of the appended claims, it is used in this broad sense and is intended to include all such inner-liner materials of the class or group just mentioned. The body stock may consist of any fibrous body sheet material such as shipboard, kraft, jute or any other inexpensive material of a similar nature. Y

While I have described a preferred embodiment of my invention, it is understood that the same is subject to modifications without departing from the spirit of the invention as covered by the appended claims.

What is claimed is:

1. The steps in the method of manufacturing laminated inner-liner fibrous tubes consisting of folding the leading edge of an oil proof parchment over the leading edge of a fibrous body sheet, and thereafter fabricating the parchment and the body sheet into a composite body stock. and rolling the composite body stool: to enclose the parchment Within the'fibrous body sheet to form a tube.

2. 'lhe steps in the method of manufacturing laminated inner-liner fibrous tubes consisting of feeding a :fibrous body sheet and an oil proof parchment in opposite direction, folding the edge of the parchment over the leading edge of the body sheet and adhesively uniting the ioldto the leading edge of the body sheet, and thereafter feeding the leading edge of the composite body sheet in a direction opposing the normal feeding of the parchment to advance directly the fold to a gripping member forming part of a rolling mechanism for rolling the body sheet and the parchment into a tube.

" 3. The steps in the method of .manufacturing laminated innere-liner fibrous tubes consisting of perforating transversely an inner-liner sheet of oil proof parchment at predetermined lengths, uniting the perforated parchment 'with a fibrous body sheet for the length of a single perforated section, and automatically severing the united section of parchment along the perforation thereof before said Sectio is completely applied to the iibrous sheet.

4. The steps in the method of manufacturing laminated inner-liner fibrous tubes consisting'of ment over the leading edge of continuously. coating' one surface of a brous body sheet, sectionally coating the' other surface of the body sheet, applying a sheet of an oil proof parchment of substantially' the same area to each of the coated sections and keeping the marginal edges of the parchment and the body sheet in alignment, and rolling the sheets together to enclose the parchment and to form a tube.

5. The method of manufacturing laminated inner-liner fibrous tubes comprising continuously feeding a body sheet of brous material in one direction, continuously feeding lan inner-liner sheet in the opposite direction, folding the leading edge of the inner-liner sheet over the leading edge of the body sheet, and feeding the leading edge of thecomposite body sheet to advance directly the composite body stock to a gripping member forming part of a rolling mechanism `for rolling the body sheet and the parchment into a tube.

6. The method of manufacturing laminated inner-liner fibrous tubes comprising continuously feeding a body sheet of iibrous material in one direction, continuously feeding an inner-liner sheet of oil proof parchment in the opposite direction, slightly overlapping the leading edges of the body sheet and the parchment and joining them together, and `utilizing the leading edge of the body sheet to advance the fold directly to a gripping member forming part of a rolling mechanism for rolling the body sheet and the parchment into a tube.

7. The method of manufacturing laminated inner-liner iibrous tubes comprising continuously feeding a body sheet of fibrous material in one direction, continuously feeding an inner-liner sheet of oil proof parchment in the opposite direction, folding the leading edge of the parchment over'the leading edge of 'the body sheet, attaching a measured length of the parchment to the body sheet, severing the measured length of the parchment before completing the attachnient thereof, rolling the severed sheet of parchment and a predetermined length of the body sheet to enclose the parchment and to forni a tube, severing the body sheet prior to the completion of the rolling operation, and applying a label to the exterior of the tube thus formed.

il. The method of manufacturing laminated inner-liner fibrous tubes comprising continuously feeding a body sheet of fibrous material in one direction, continuously feeding an inner-liner sheet of oil proof parchment in the opposite direction, folding the leading edge of the parchthe body sheet, coating the body sheet with a sheet of the parchment for sumcient length to form an overlapping inner-diner of given size, severing the sheet of parchment before completing the coating operation, continuing the feeding of the body sheet and rolling apredetermined length thereof about the inner-liner before severing the body sheet.

il. .a .method oi manufacturing inner-liner paper tubes comprising the following steps:A applying adhesive on one side of a paper' strip having a straightcut end, applying adhesive on the opposite side at the end of the strip for a disntance more than the length of an inner-liner, composed of a sheet of paper or oil impervious material, forming a fold in the leading edge of the inner-diner and adhesively joining the fold cn the end of the strip with the fold adjacent the end of the strip, and rolling the strip and the inner-liner into a tubev having `adhesive covering one side of the'paper strip, and between the outer wall of the inner-liner and all the contiguous Walls of the strip.

10. A method of manufacturing inner-liner paper tubes comprising the following steps: applying adhesive on one side of a paper strip having a straight cut end, applying adhesive on the opposite side at the end of the strip for a distance more than the length of an innerliner, composed of a sheet of paper or oil imi,- pervious material,- forming a fold in the leading edge of the inner-liner and adhesively the fold on the end of the strip with the fold adjacent the end of the strip, squeezing the overlap on opposite sides of the fold to force adhesive between the cut end and thelfold, and rolling the strip andthe inner-liner intoV a tube having adhesive covering one side of the paper strip, and between the outer wall of the inner-liner and all the contiguous walls of the strip.

11. The process of making laminated innerliner paper tubes comprising the following steps: applying adhesive to one entire sidev of a body sheet, applying adhesive to the opposite side of the body sheet for a distance slightly greater than the length of the inner-liner sheet, placing the leading edge of an inner-liner sheet upon the leading edge of the body sheet so that the leading edges are in opposite directions, pressing them together to adhere, applying adhesive to the outside of the edge of the inner-liner sheet, folding the inner-liner sheet across the leading edge of the body sheet, and rolling the sheets together to enclose the inner-liner sheet and to form a tube.

12. A process of making laminated inner-liner paper tubes comprising the following steps; Applying adhesive to one entire side of a body sheet, applying adhesive to the opposite side of a body sheet for a distance appreciably greater than the length of the inner-liner sheet, placing the leading edge of an inner-liner sheet in a different direction adjacent the leading edge of a body sheet, moving the leading edge of the body sheet against the inner-liner sheet, so that the leading edge of the inner-liner sheet folds over the leading edge of the body sheet and adheres thereto on both sides thereof, and rolling the combined sheets to form a tube.

13. The process of making laminated innerliner paper tubes comprising the following steps: Applying acoating of adhesive to both -sides of a fibrous body sheet, the coating on one side being of indefinite length and on the other side being of denite length, perforating an. inner-s joining liner sheet at measured lengths substantiallyI corresponding to the area of the coating of definite length, folding the leading edge of the inner-liner sheet over the leading edge of the body sheet and simultaneous therewith applying a side seam of adhesive to the outer edge of the inner-liner sheet, pressing the overlapping edges of the inner-liner sheet and the body sheet together to force the glue between the cut end of the body sheet and the fold formed by the overlapping operation, employing the leading edge of the body sheet to advance the fold to a gripping member, severing the inner-liner sheet along the adjacent perforation, partly Winding the container body and then interrupting the winding to sever the body sheet, and completing the winding operation of the tube., y

- 14. The steps in the method of manufacturing laminated inner-liner fibrous tubes consisting of applying a layer of adhesive to both sides of a fibrous body Sheet, the layer of adhesive on one side being of indefinite length and on the other side being of definite length, bringing the leading edge of a sheet of oil proof parchment unxnoistened into engagement with the layer of adhesive of indefinite length, severing the parchment into a length coming within the length of adhesive of definite length and uniting the severed length of parchment to the body sheet on the side thereof coated a definite length, with the lateral edges of both sheets of material in substantial register along their lateral edges,

length of parchment into a tube directly following their joinder into a composite sheet.

15. The method of manufacturing laminated inner-liner fibrous tubes comprising feeding a fibrous body sheet and a. sheet of an oil proof parchment in dierent directions, coating both sides of the fibrous body sheet with adhesive, the coating on one side being continuous and on the other sectional, measuring the parchment into lengths sufiicient to permit folding the leading edge thereof about the leading edge of the body sheet and successively cover the severally coated sections, adhesively joiningA the severed lengths of parchment with the adjacent coated sections of the body sheet and keeping the marginal edges of the parchment and the body sheets in alignment, severing the respective sections of parchment before the completion of their joinder with the body sheet, and independently severing the body sheet in completing the rolling of the body and the parchment into a tube.

HARRY W. MORGAN.

and rollingl the body sheet and the severed n 

